SN4 ""

No	Pattern	Freq
1	who have [adv] been	861
2	[Wh pn] have [adv] been	626
3	[Wh pn] had [adv] been	474
4	[Wh pn] have not been	254
5	[Wh pn] have [not/n't] been	254
6	[Wh pn] have not been	204
7	[Wh pn] has [adv] been	183
8	[Wh pn] have [adv] been	156
9	[Wh pn] have never been	88
10	[Wh pn] have never been	88
11	[Wh pn] have already been	57
12	[Wh pn] have already been	57
13	[Wh pn] have also been	52
14	[Wh pn] have also been	52
15	[Wh pn] have n't been	50
16	[Wh pn] have previously been	47
17	[Wh pn] have previously been	47
18	[Wh pn] have always been	45
19	[Wh pn] have always been	45
20	[Wh pn] have just been	43
21	[Wh pn] have just been	43
22	[Wh pn] have once been	38
23	[Wh pn] have once been	38
24	[Wh pn] have recently been	29
25	[Wh pn] have recently been	29
26	[Wh pn] 's [adv] been	29
27	[Wh pn] have long been	24
28	[Wh pn] have long been	24
29	[Wh pn] 'd [adv] been	21
30	whom have [adv] been	18